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## --- BEGIN LICENSE BLOCK ---
# Copyright (c) 2009, Mikio L. Braun
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are
# met:
#
# * Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
#
# * Redistributions in binary form must reproduce the above
# copyright notice, this list of conditions and the following
# disclaimer in the documentation and/or other materials provided
# with the distribution.
#
# * Neither the name of the Technische Universität Berlin nor the
# names of its contributors may be used to endorse or promote
# products derived from this software without specific prior
# written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
# HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
## --- END LICENSE BLOCK ---
def readfile(fn)
f = open(fn)
s = f.read
f.close
s
end
def writefile(fn, s)
f = open(fn, 'w')
f.write s
f.close
end
def classfile(classname)
classname.tr('.', File::SEPARATOR) + '.java'
end
def translate(cl, s)
mark = "public class #{cl.split('.').last} {\n"
i = s.index(mark) + mark.length
j = s.rindex('}')
head = s[0...i]
body = s[i...j]
# remove part copied in last time
body.gsub! /\/\/BEGIN.*?\/\/END\n/m, ''
copybody = body.dup
# remove part which should not be added as float
copybody.gsub! /\/\/STOP.*?\/\/START\n/m, ''
# do necessary substitutions
copybody.gsub! /DoubleMatrix/, 'FloatMatrix'
copybody.gsub! /DoubleBuffer/, 'FloatBuffer'
copybody.gsub! /DoubleVector/, 'FloatVector'
copybody.gsub! /ComplexDouble/, 'ComplexFloat'
copybody.gsub! /([0-9]+\.[0-9]+(?:[eE]-?[0-9]+)?)/, '\1f'
copybody.gsub! /double/, 'float'
copybody.gsub! /NativeBlas\.dz/, 'NativeBlas.sc'
copybody.gsub! /NativeBlas\.d/, 'NativeBlas.s'
copybody.gsub! /NativeBlas\.z/, 'NativeBlas.c'
copybody.gsub! /NativeBlas\.idamax/, 'NativeBlas.isamax'
copybody.gsub! /NativeBlas\.izamax/, 'NativeBlas.icamax'
copybody.gsub!(/([a-z]+)Double/, '\1Float')
# construct output file
out = []
out << head
out << body
out << "//BEGIN\n"
out << " // The code below has been automatically generated.\n"
out << " // DO NOT EDIT!\n"
out << copybody
out << "//END\n"
out << "}\n"
return out.join
end
if ARGV.size < 2
puts "Usage: ruby static_class_to_float.rb srcprefix classname"
exit
end
prefix = ARGV[0]
source = ARGV[1]
fn = File.join(prefix, classfile(source))
if File.exist? fn
s = readfile(fn)
writefile(fn, translate(source, s))
else
puts "Could not read file #{fn}"
end
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